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  • ZH

    EN

    JP

    ES

    RU

    DE

    ??? ?? ?? ????? ?? ?? ??

    ?? 29??? ??? ?? ?? ????? ?? ?? ??? ??? ??? ??.

    ?? ???? ??? ?? ?? ????? ?? ?? ??? ??? ??? ??? ????: ?? ??, ????, ?? ??, ???? ??, ??(?? ? ??), ?? ??, ??????, ?? ? ??, ??.


    Professional Standard - Recommended Standards for Engineering Construction, ??? ?? ?? ????? ?? ?? ??

    Group Standards of the People's Republic of China, ??? ?? ?? ????? ?? ?? ??

    Liaoning Provincial Standard of the People's Republic of China, ??? ?? ?? ????? ?? ?? ??

    Ningxia Provincial Standard of the People's Republic of China, ??? ?? ?? ????? ?? ?? ??

    Hubei Provincial Standard of the People's Republic of China, ??? ?? ?? ????? ?? ?? ??

    Professional Standard - Construction Industry, ??? ?? ?? ????? ?? ?? ??

    Beijing Provincial Standard of the People's Republic of China, ??? ?? ?? ????? ?? ?? ??

    German Institute for Standardization, ??? ?? ?? ????? ?? ?? ??





    ?2007-2024 ??? ??

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